package com.sky.service.impl;

import com.sky.dto.GoodsSalesDTO;
import com.sky.entity.Orders;
import com.sky.mapper.OrderMapper;
import com.sky.mapper.UserMapper;
import com.sky.service.RepportService;
import com.sky.service.WorkspaceService;
import com.sky.vo.*;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.util.*;
import java.util.stream.Collectors;

@Slf4j
@Service
public class RepportServiceImpl implements RepportService {
    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private UserMapper userMapper;
    @Autowired
    private WorkspaceService workspaceService;

    @Override
    public TurnoverReportVO getturn(LocalDate begin, LocalDate end) {
        List<LocalDate> dateList = new ArrayList<>();
        dateList.add(begin);
        while (!begin.equals(end)) {
            begin = begin.plusDays(1);
            dateList.add(begin);
        }
        List<Double> turnList = new ArrayList<>();
        for (LocalDate date : dateList) {
            LocalDateTime begintime = LocalDateTime.of(date, LocalTime.MIN);
            LocalDateTime emdTime = LocalDateTime.of(date, LocalTime.MAX);
            Map map = new HashMap<>();
            map.put("begin", begintime);
            map.put("end", emdTime);
            map.put("status", Orders.COMPLETED);
            Double turnover = orderMapper.sumByMap(map);
            turnover = turnover == null ? 0.0 : turnover;
            turnList.add(turnover);
        }
        return TurnoverReportVO
                .builder()
                .dateList(StringUtils.join(dateList, ","))
                .turnoverList(StringUtils.join(turnList, ","))
                .build();
    }

    @Override
    public UserReportVO getUserstatistics(LocalDate begin, LocalDate end) {
        List<LocalDate> dateList = new ArrayList<>();
        while (!begin.equals(end)) {
            begin = begin.plusDays(1);
            dateList.add(begin);
        }
        List<Integer> newUserList = new ArrayList<>();
        List<Integer> totalUserList = new ArrayList<>();
        for (LocalDate date : dateList) {
            LocalDateTime beginTime = LocalDateTime.of(date, LocalTime.MIN);
            LocalDateTime endTime = LocalDateTime.of(date, LocalTime.MAX);
            Map map = new HashMap();
            map.put("end", endTime);
            Integer totalUser = userMapper.countByMap(map);
            map.put("begin", beginTime);
            Integer newUser = userMapper.countByMap(map);
            totalUserList.add(totalUser);
            newUserList.add(newUser);
        }
        return UserReportVO.builder()
                .dateList(StringUtils.join(dateList, ","))
                .totalUserList(StringUtils.join(totalUserList, ","))
                .newUserList(StringUtils.join(newUserList, ","))
                .build();
    }

    @Override
    public OrderReportVO getOrdertatistics(LocalDate begin, LocalDate end) {
        List<LocalDate> dateList = new ArrayList<>();
        while (!begin.equals(end)) {
            begin = begin.plusDays(1);
            dateList.add(begin);
        }
        List<Integer> newUserList = new ArrayList<>();
        List<Integer> totalUserList = new ArrayList<>();
        for (LocalDate date : dateList) {
            LocalDateTime beginTime = LocalDateTime.of(date, LocalTime.MIN);
            LocalDateTime endTime = LocalDateTime.of(date, LocalTime.MAX);
            Integer orderCount = getOrderCount(beginTime, endTime, null);
            newUserList.add(orderCount);
            Integer validOrderConut = getOrderCount(beginTime, endTime, Orders.COMPLETED);
            totalUserList.add(validOrderConut);
        }
        Integer totalOrderCount = newUserList.stream().reduce(Integer::sum).get();
        Integer vakidOrder = totalUserList.stream().reduce(Integer::sum).get();
        Double OrderCompletionRatr = 0.0;
        if (totalOrderCount != 0) {
            OrderCompletionRatr = vakidOrder.doubleValue() / totalOrderCount;

        }
        return OrderReportVO.builder()
                .dateList(StringUtils.join(dateList, ","))
                .orderCountList(StringUtils.join(newUserList, ","))
                .validOrderCountList(StringUtils.join(totalUserList, ","))
                .totalOrderCount(totalOrderCount)
                .validOrderCount(vakidOrder)
                .orderCompletionRate(OrderCompletionRatr)
                .build();
    }

    @Override
    public SalesTop10ReportVO getSalesTop10(LocalDate begin, LocalDate end) {
        LocalDateTime beginTime = LocalDateTime.of(begin, LocalTime.MIN);
        LocalDateTime endTime = LocalDateTime.of(end, LocalTime.MAX);

        List<GoodsSalesDTO> salesTop = orderMapper.getSalesTop(beginTime, endTime);

        List<String> names = salesTop.stream().map(GoodsSalesDTO::getName).collect(Collectors.toList());

        String name = StringUtils.join(names, ",");
        List<Integer> number = salesTop.stream().map(GoodsSalesDTO::getNumber).collect(Collectors.toList());
        String join = StringUtils.join(number, ",");
        return SalesTop10ReportVO
                .builder()
                .nameList(name)
                .numberList(join)
                .build();
    }

    @Override
    public void exportBusinessData(HttpServletResponse response) {
        LocalDate begin = LocalDate.now().minusDays(30);
        LocalDate end = LocalDate.now().minusDays(1);
        BusinessDataVO businessData = workspaceService.getBusinessData(LocalDateTime.of(begin, LocalTime.MIN), LocalDateTime.of(end, LocalTime.MAX));
        InputStream in = this.getClass().getClassLoader().getResourceAsStream("template/运营数据报表模板.xlsx");
        try {
            XSSFWorkbook excel = new XSSFWorkbook(in);
            XSSFSheet sheet1 = excel.getSheet("Sheet1");
            sheet1.getRow(1).getCell(1).setCellValue("时间:" + begin + "至" + end);

            XSSFRow row = sheet1.getRow(3);
            row.getCell(2).setCellValue(businessData.getTurnover());
            row.getCell(4).setCellValue(businessData.getOrderCompletionRate());
            row.getCell(6).setCellValue(businessData.getNewUsers());

            XSSFRow row1 = sheet1.getRow(5);
            row1.getCell(2).setCellValue(businessData.getValidOrderCount());
            row1.getCell(4).setCellValue(businessData.getUnitPrice());

            for (int i = 0; i < 30; i++) {
                LocalDate date = begin.plusDays(i);
                BusinessDataVO businessData1 = workspaceService.getBusinessData(LocalDateTime.of(date, LocalTime.MIN), LocalDateTime.of(date, LocalTime.MAX));
                XSSFRow row2 = sheet1.getRow(i + 7);
                row2.getCell(1).setCellValue(date.toString());
                row2.getCell(2).setCellValue(businessData1.getUnitPrice());
                row2.getCell(3).setCellValue(businessData1.getValidOrderCount());
                row2.getCell(4).setCellValue(businessData1.getOrderCompletionRate());
                row2.getCell(5).setCellValue(businessData1.getUnitPrice());
                row2.getCell(6).setCellValue(businessData1.getNewUsers());
            }
            ServletOutputStream out = response.getOutputStream();
            excel.write(out);
            out.close();
            excel.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    private Integer getOrderCount(LocalDateTime begin, LocalDateTime end, Integer status) {

        Map map = new HashMap();
        map.put("begin", begin);
        map.put("end", end);
        map.put("status", status);
        return orderMapper.countByMap(map);
    }
}
